[ Grammar ]
With marine life being threatened by plastic pollution, it is critical that people _____ plastic garbage into the sea.
A. don’t throw
B. not throw
C. cannot throw
D. shouldn’t have thrown

Random Topics:
going toSentence CompletionPossessive PronounsAdjectives and ArticlesVerb to beConjunctions and PrepositionsVerbal TensesPresent and Past TenseConditional Sentence Type 3Perfect and Past TenseOther quiz:
Vocabulary and Grammar › ViewThe team, as well as the project manager, _________ (disagree) with the client’s proposal.
A. disagree
B. disagrees
C. have disagreed
D. disagreeing
Mixed Tenses › View
I don’t think he ____________in the thirty years I _______________ him.
A. has changed/have known
B. had changed/have known
C. had changed/had known
D. has changed/knew
Mixed General Quiz › ViewMy mother wants to buy a _______ for my younger sister.
A. toyss
B. toyes
C. toys
D. toy
Past Modals › View
The concert hasn’t started yet. We ___
A. needn’t have rushed to get here.
B. might not have rushed to get here.
